7.Pull transfer shaft (20) out the bottom of pump body (34). See FIG. 19.

34

20

ti9905

FIG. 19

8.Remove pin (56). Remove piston valve assembly. Unscrew piston valve (43) from piston housing (53). Remove wear ring (41*), u-cup (40*) and ball (42). Inspect all parts for damage. See FIG. 20.

53

56

*40 Lip up

*41

42

43

ti9904b

FIG. 20

Pump Lower Repair

9. Remove pins (55). See FIG. 21.

55

36

35

54

74

55

r_311880_14e_fig21

FIG. 21

NOTE: Series A and B pumps were equipped

with springs pins. In Series C pumps, these pins were replaced with a solid clevis

pin (55, 56).

10.Loosen set screw (37) from collar (36). Remove col- lar from piston housing (54). Remove u-cup (35*). Inspect all parts for damage. See FIG. 22.

36

*35

 

37

 

Lip down

 

 

54

r_311882_14e_fig22

FIG. 22

311882T

15

Page 15
Image 15
Graco 295616 important safety instructions Remove pins 55. See FIG